2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Musculoskeletal System And Connective Tissue 710-739 > Osteopathies, Chondropathies, And Acquired Musculoskeletal Deformities 730-739 > Other Disorders Of Bone And Cartilage 733.* > 2008 ICD-9-CM Diagnosis 733.2 Cyst of bone  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 733.2 can be accessed here. Benign unilocular lytic areas in the proximal end of a long bone with well defined and narrow endosteal margins. The cysts contain fluid and the cyst walls may contain some giant cells. Bone cysts usually occur in males between the ages 3-15 years. 733.2 is a non-specific code that cannot be used to specify a diagnosis View the ICD-9-CM Volume 1 733.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog.